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<div class="moz-cite-prefix">On 22/2/22 18:55, Warin wrote:<br>
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<div class="moz-cite-prefix">On 22/2/22 09:20, Graeme Fitzpatrick
wrote:<br>
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<div dir="ltr" class="gmail_attr">On Mon, 21 Feb 2022 at
17:30, Warin <<a href="mailto:61sundowner@gmail.com"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">61sundowner@gmail.com</a>>
wrote:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
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rgb(204,204,204);padding-left:1ex"> <br>
DCS Topo Legend <br>
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href="https://raw.githubusercontent.com/mholling/nswtopo-legends/master/nsw.png"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://raw.githubusercontent.com/mholling/nswtopo-legends/master/nsw.png</a></blockquote>
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<div>Personally, I think the dry-lake proposal has a lot
going for it - maybe we should just start using it? A
comment on it's talk page also suggested natural=salt_pan,
which isn't bad either.<br>
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<div>I also notice on the Topo index that they show both wet
& dry swamps - dry swamp may also be an option <br>
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<p>Except the Topo map does not map as a wet land/ swamp... <br>
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<p>To me a lake would have to have some depth of water in it, not
just soggy soil .. so I against 'lake' if it never has a water
surface now, even though they were lakes in the distant path. <br>
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<p>Satellite imagery is not consistent across the 'lake' area ..
would end up being a matrix of surface types. <br>
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<p>"A playa is a dry, vegetation-free, flat area at the lowest
part of an undrained desert basin. It is a location where
ephemeral lakes form during wet periods, and is underlain by
stratified clay, silt, and sand, and commonly, soluble salts."</p>
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<p>So it is not a playa as defined above by the US Geo Science
people... <br>
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<p>A 'dry_lake' as defined on the osm wiki "An area of flat,
dried-up land that is almost always dry, but rarely fills with
water creating a very shallow lake."</p>
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<p>Humm well it does not define 'rare' so I suppose it is as close
as were are going to get. <br>
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<p>As a square peg for a place of round holes :P</p>
<p>natural/landform=dry_lake -3 uses of this in OSM .. so it will
not render. <br>
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<p>was:water=lake</p>
<p>name=Lake Mungo</p>
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<p>As a matrix of surface types then a multipolugon with each
surface type as a member ... <br>
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<p>From <a class="moz-txt-link-freetext" href="http://www.visitmungo.com.au/plants">http://www.visitmungo.com.au/plants</a></p>
<p>Looks like the 'lake beds' are mainly shrubs (bluebush and
saltbush) with grasslands on the wetter areas.. <br>
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<p>Possible ignore grass and a stretch of things to get <br>
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<p>natural=shrub</p>
<p>landform=dry_lake</p>
<p>was:water=lake</p>
<p>name=Mungo Lake <br>
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<p>and similar for the rest of these??? <br>
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<p>I'll have a look tomorrow at the various images to see if I can
detect differences. <br>
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